#pragma once

#include <iostream>
#include <string>
#include <unordered_map>
#include <unistd.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>

using namespace std;

class User
{
public:
    User(const string &ip,const uint16_t &port):_ip(ip),_port(port)
    {}
    ~User()
    {}
    string ip() {return _ip;}
    uint16_t port() {return _port;}
    
private:
    string _ip;
    uint16_t _port;
};


class OnlineUser
{
public:
    OnlineUser(){}
    ~OnlineUser(){}
    void addUser(const string &ip,const uint16_t &port)
    {
        string id = ip + "-" + to_string((port));
        users.insert(make_pair(id,User(ip,port)));
    }

    void delUser(const string &ip,const uint16_t &port)
    {
        string id = ip + "-" + to_string((port));
        users.erase(id);
    }

    bool isOnline(const string &ip,const uint16_t &port)
    {
        string id = ip + "-" + to_string((port));
        return users.find(id) == users.end() ? false : true;
    }
    void broadcastMessage(int sockfd,const string &ip,const uint16_t &port,const string &message)
    {
        for(auto &user : users)
        {
            // 回应客户端
            struct sockaddr_in client;
            bzero(&client,sizeof client);

            client.sin_family = AF_INET;
            client.sin_port = htons(user.second.port());
            client.sin_addr.s_addr = inet_addr(user.second.ip().c_str());
            string s = ip+"-"+ to_string(port) + "# ";
            s += message;

            sendto(sockfd,s.c_str(),s.size(),0,(struct sockaddr*)&client,
            sizeof client);
        }
    }


private:
    unordered_map<string,User> users;
};